Hey,I'm a Chinese developer.So in my game I must use Chinese font.
I type some words in the label like "远程武器攻击力+{0} : 命中率+{1:0.##%} : 闪避率+{2:0.##%}",and use dynamic font called "simsun".
I set the font size to 12 ,no gradient and effect.
And in the NGUIText.cs / Update method,I add the code
dynamicFont.material.mainTexture.wrapMode = TextureWrapMode.Clamp;
dynamicFont.material.mainTexture.filterMode = FilterMode.Point;
because I can't change the filterMode in the inspector.
It will display like this :

The Chinese are very clear but the English are blurry.I don't know why it happened like this.
When I install the font and use it in the photoshop,the words are all clear in that size.
You can download the font file here:http://www.fontpalace.com/font-download/SimSun/